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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » java.lang

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

java.lang .Compiler

Compiler

final public class Compiler (Code)

The Compiler class is provided to support Java-to-native-code compilers and related services. By design, the Compiler class does nothing; it serves as a placeholder for a JIT compiler implementation.

When the Java Virtual Machine first starts, it determines if the system property java.compiler exists. (System properties are accessible through getProperty and, a method defined by the System class.) If so, and the name isn't NONE or none, the internal JIT is enabled.

If no compiler is available, these methods do nothing.
version:
   1.17 10/17/00
See Also:   java.lang.System.getProperty(java.lang.String)
See Also:   java.lang.System.getProperty(java.lang.Stringjava.lang.String)
since:
   JDK1.0

Method Summary
native public static Object	command(Object any) Examines the argument type and its fields and perform some documented operation.
native public static boolean	compileClass(Class clazz) Compiles the specified class. Parameters: clazz - a class.
native public static boolean	compileClasses(String string) Compiles all classes whose name matches the specified string. Parameters: string - the name of the classes to compile.
native public static void	disable() Cause the Compiler to cease operation.
native public static void	enable() Cause the Compiler to resume operation.

Method Detail

command
native public static Object command(Object any)(Code)
	Examines the argument type and its fields and perform some documented operation. No specific operations are required. Parameters: any - an argument. a compiler-specific value, or `null` if no compileris available. exception: NullPointerException - if `any` is `null`.

compileClass
native public static boolean compileClass(Class clazz)(Code)
	Compiles the specified class. Parameters: clazz - a class. `true` if the compilation succeeded;`false` if the compilation failed or no compileris available. exception: NullPointerException - if `clazz` is `null`.

compileClasses
native public static boolean compileClasses(String string)(Code)
	Compiles all classes whose name matches the specified string. Parameters: string - the name of the classes to compile. `true` if the compilation succeeded;`false` if the compilation failed or no compileris available. exception: NullPointerException - if `string` is `null`.

disable
native public static void disable()(Code)
	Cause the Compiler to cease operation. (This a noop on Solaris).

enable
native public static void enable()(Code)
	Cause the Compiler to resume operation. (This a noop on Solaris).

Methods inherited from java.lang.Object

public boolean equals(Object obj)(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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